TE Connectivity 1-643814-8 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-643814-8 is an 18-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as a free-hanging, in-line or right-angle mounted component with locking ramp fastening. The part is currently active in production with 792 units in stock.

Substitute parts are identified when equivalent connectors maintain identical electrical and mechanical specifications while differing in packaging configuration or contact finish material. Identifying suitable alternatives ensures design flexibility, supply chain continuity, and compliance with evolving regulatory requirements.

Substiute Parts

1-643814-8

TE Connectivity AMP ConnectorsIn Stock: 8271-643814-8 Datasheet

Current PartRFQ

4-643814-8

TE Connectivity AMP ConnectorsIn Stock: 8124-643814-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-643814-8 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Receptacle)
• Number of positions (18)
• Contact type (Female Socket)
• Pitch (0.100" / 2.54mm)
• Wire gauge (24 AWG)
• Cable termination method (IDC)

Mechanical Compatibility Parameters:

• Number of rows (1)
• Mounting type (Free Hanging, In-Line, Right Angle)
• Fastening type (Locking Ramp)
• Contact finish thickness (80.0µin / 2.03µm)
• Features (Closed End)
• Color (White)
• Series (MTA-100)

Environmental & Regulatory Parameters:

• Moisture Sensitivity Level (1 - Unlimited)

Substitute parts must maintain identical specifications across all listed parameters. Variations in packaging configuration or contact finish material composition do not affect functional compatibility when all electrical and mechanical parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

1-643814-8 (Tin-Lead Contact Finish)

The 1-643814-8 is classified as RoHS non-compliant due to its tin-lead contact finish composition. This part remains active in production and is suitable for applications where RoHS compliance is not a regulatory requirement. Selection of this part is appropriate for legacy systems, military applications, or designs where tin-lead contact characteristics are specifically required.

4-643814-8 (Tin Contact Finish)

The 4-643814-8 is ROHS3 compliant and features a tin contact finish instead of tin-lead. This substitute part is functionally equivalent across all electrical and mechanical parameters. The 4-643814-8 is the appropriate selection for applications requiring RoHS compliance, including consumer electronics, automotive systems subject to EU regulations, and new product designs targeting global markets with environmental compliance mandates.

Both parts maintain identical connector geometry, termination method, and performance characteristics. The selection between these two parts is determined by regulatory compliance requirements and contact finish material specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Are the 1-643814-8 and 4-643814-8 electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including 18 positions, 0.100" pitch, 24 AWG wire gauge, IDC termination, and female socket contact type. The connectors are electrically equivalent and can be used interchangeably in circuit applications.

Q: What is the difference between tin-lead and tin contact finishes?

A: The 1-643814-8 features a tin-lead contact finish, while the 4-643814-8 features a tin contact finish. Both finishes provide equivalent contact resistance and durability at the specified 80.0µin (2.03µm) thickness. The primary distinction is regulatory compliance: tin-lead is RoHS non-compliant, while tin is ROHS3 compliant.

Q: Can I use the 4-643814-8 as a direct replacement for the 1-643814-8 in an existing design?

A: Yes, the 4-643814-8 is a direct functional substitute for the 1-643814-8. All mechanical mounting dimensions, electrical performance, and connector interface specifications are identical. The substitution is valid from an engineering compatibility standpoint.

Q: What does the packaging difference between these parts mean?

A: The 1-643814-8 packaging is not specified in the product data, while the 4-643814-8 is supplied in bulk packaging. Packaging differences do not affect connector performance or compatibility. Packaging selection is determined by procurement and inventory management requirements.

Q: Which part should I specify for a new design?

A: For new product designs, the 4-643814-8 is the recommended selection due to ROHS3 compliance. This ensures compatibility with current and future regulatory requirements across global markets. The 1-643814-8 remains appropriate for legacy system maintenance and applications where RoHS compliance is not applicable.

Q: Are both parts currently available?

A: Yes. The 1-643814-8 has 792 units in stock, and the 4-643814-8 has 780 units in stock. Both parts are classified as active products in current production.

Q: What is the Moisture Sensitivity Level for these connectors?

A: Both connectors are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These parts can be stored and handled under standard environmental conditions without special moisture control measures.